Tedsandbox

I think a line at the top looks nice
Here is the protein I have been looking at.

{Which protein is this? - hemoglobin. - EGFR. + Insulin. - K+ channel.
 * type="[]"}

Need more help? Click here to see backbone model with disulfide bonds in red

Need more help? Here is a view with the hydrophobic core highlighted

Perhaps it was confusing because you are not used to seeing this protein as a dimer. Here is the protein with the chains highlighted to demonstrate that it is a dimer.

Last look. this time as a monomer

Click on the disulfide bonds or the white alpha helix for more information.

Click on the amino acids for more information.

{What amino acid is this? - cystine + glutamic acid - glycine - valine
 * type="" }

{Complete the text from the Wikipedia articles. Cystine can form { disulfide } bonds. { Glycine (i) _8 } is the smallest amino acid.
 * type="{}"}

{Type in your answer How many amino acids are there in the image? { 4 _3 }
 * type="{}"}